Pure sine wave?

[MisterX]

I wonder.... if mechanical harmonic distortion in the inner ear @ pure 200 Hz sine wave not only makes the basillary membrane inside the ear vibrate at 200 Hz, but also at 400, 600, 800, 1000, 1200.... Hz with amplitudes of 33%, 13%, 6%, 4%, 2%, .... then what happens with 1kHz or 10kHz sine waves??? 10kHz would create overtones of 20, 30, 40 ,50, 60 kHz but ear or brain himself filters everything above let's say 20kHz. So there must be some major diference between low freq and high freq. Maybee that's the reason for us to hear much more details on high freq. sounds...

[BassAwdyO]

The ear and brain are amazing devices able to do things way beyond our own comprehension. That seems sort of ironic saying that the brain can do thinsg beyond our comprehension. anyways. In order for a tone to be created that would excite only the fundimental cillia in the ear we would need to figure out exactly what frequencys the other cillia are vibrating at, and the exact amplitude and phase. to do this i could only invisoin one thing. An MRI video of the cochlea structure undergoing the tone. If a MRI machine exists that could video the insides of the ear to a very very small scale and an ultra high sampling rate then it is possible to map the resonance of the structures to determine the exact frequency amplitude and phase to be canceled. once it is determined exactly what is vibrating in there how much and at what phase, we could simply play around with canceling it out with some sound of opposite phase, equal amplitude and frequency. Is it worth doing? no way. my ears hear just fine thank you. Very intersting idea though

[BassAwdyO]

I think we ought to investigate more into the workings of the ear. Perhaps a thread should be created about sound localization and the workings of the ear/brain in sound perception. I dont know alot about it, but from what i do know. its some amazing stuff. The workings of the ear/ brain in sound localization are the essential key to finding better ways to produce true surround sound stereo systems and on the way to everyone's dream. Perfect audio reproduction.






today i would like to talk about reproduction...

sound reproduction that is